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Related Party Transactions - Additional Information (Details)	1 Months Ended		3 Months Ended		6 Months Ended
	Oct. 31, 2020 USD ($)	Feb. 29, 2020 shares	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) Founder	Jun. 30, 2020 USD ($)
Related Party Transaction [Line Items]
Number of founder shareholders | Founder					3
Equity securities recognition amount			$ 25,814,000	$ 517,000	$ 26,852,000	$ 517,000
Founder Shareholders | Scientific Consulting and Other Expenses
Related Party Transaction [Line Items]
Payments made to related parties					200,000	100,000
Verve Therapeutics, Inc.
Related Party Transaction [Line Items]
Equity securities recognition amount			25,800,000		26,900,000
Equity securities			$ 29,300,000		29,300,000
Verve Therapeutics, Inc. | Common Stock
Related Party Transaction [Line Items]
Number of shares purchased under equity method | shares		546,970
Verve Therapeutics, Inc. | Research and Development Expense
Related Party Transaction [Line Items]
Purchases from related party					200,000
Verve Therapeutics, Inc. | Series A Preferred Stock Shares
Related Party Transaction [Line Items]
Purchases from related party						$ 800,000
Reimbursed Costs | Prime Agreement | Interest and Other Income (Expense), Net | Prime Medicine Inc
Related Party Transaction [Line Items]
Income from related party	$ 30,000				$ 100,000

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